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Sentry MidRange


Dimensions: 1.52″ x 0.67″ x 0.22″ (bare tag) | 2.50″ x 0.69″ x 0.25″ (with cover)

Tag overview

Product Number: AST1-174-0300 (bare tag) | AST1-174-2300 (with cover)

Improvements in RF chip design, and Vizinex’s expertise at matching the new chips to highly efficient antennae, are improving the performance and reducing and cost of RFID. The Midrange is the third generation of Vizinex’s highly successful tag for tracking larger metal assets. The latest generation is 30% smaller than the original VX Mid, but it provides a 30% better range and broader frequency response at a price that is 25% lower.

The new tag has a relatively small footprint of 39mm x 17mm. Despite this small package, it provides a read range of 33’ (10m) when mounted on metal.

The smaller footprint and lower cost of the latest tag will enable the cost-effective tagging of a wide range of metal assets from reusable containers to oil field assets to construction equipment. The optional cover provides extra protection for the RF device and the flexibility to use bolts, rivets or zip-ties for attachment.

The Midrange is also available in a multi-surface version that has a read range of 25’ (7.5m) on metal and 21’ (6.5m) off metal. All other specifications for the multi-surface version are the same as those for the on-metal version.

Industries & Applications

Industries Using the Sentry MidRange
  • Government/military 
  • Manufacturing 
  • Waste management 
  • Rental equipment 
  • Oil and gas
Sample MidRange Applications
  • Reusable containers/special transport items 
  • Yard management/logistics 
  • Construction equipment tracking 
  • Tool and die tracking

Features & Benefits

  • Read distances of 33’ (10m) when mounted on metal
  • Modest footprint of only 1.02 in²
  • Rugged: Tolerant of repeated exposure to high temperatures, vibration and impact

Sentry MidRange Specifications

  • Dimensions: 1.52″ x 0.67″ x 0.22″ (bare tag) | 2.50″ x 0.69″ x 0.25″ (with cover)
  • Use case: Mount on metal applications
  • Attachment: High-performance, acrylic adhesive (bare tag) | 2 X #8 screws or rivets / optional adhesive (with cover)
  • Encasement: 6.4 g, 0.22 oz (bare tag) | 10 g, 0.35 oz (with cover)
  • Read Range: 33 feet (10 meters)
  • Frequency: US or ETSI – versions are separate parts
  • IC Platform: Impinj 750
  • IC Memory: EPC of 96 bits with 32 bits of user memory
  • Classification: IP-68 (bare tag) | IP-69K, when mounted with screws (with cover)
  • Operating Temperature: -50°C to 85° C
  • Temperature Tolerance: Standard: 170C continuous, 200C minutes | HT Version: 200C continuous, 225C hours
  • Shock and Vibration: MIL STD 810-F and BS EN 60068-2

*Vizinex tags survive hundreds of cycles of exposure to temperatures in the tolerance range. Vizinex tags can survive limited exposure to higher or lower temperatures. Call for more information.

Part Number
  • AST1-174-0300 (bare tag)
  • AST1-174-2300 (with cover)

About the Sentry Platform

Vizinex RFID’s Sentry™ line of high performance, cost-effective, and application-specific RFID tags are based on a printed circuit board platform. This well-established manufacturing process offers unsurpassed reliability and consistency in read range performance. At the core of the tag is a fiber-reinforced composite material that gives the Sentry its innate ruggedness. The innovative, patented tag design enables fast prototyping and affordable customization – essential to the expanding requirements of the RFID industry.